Related Experiment Video
Updated: Jun 2, 2026

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases
Published on: March 1, 2024
Pulmonary Mycobacterium massiliense disease with septicemia during immunosuppressive treatment
Yoshihiro Kobashi1, Keiji Mouri, Yasushi Obase
1Division of Respiratory Diseases, Department of Medicine, Kawasaki Medical School, Japan. yoshihiro@med.kawasaki-m.ac.jp
Abstract:
A 75-year-old man with interstitial pneumonia due to ANCA-related vasculitis requiring immunosuppressive treatment was admitted to our hospital because of fever and rapidly progressive dyspnea. Chest CT showed diffuse ground-glass opacity with infiltration shadow in the bilateral lungs. We established a definitive diagnosis by isolating Mycobacterium massiliense on culture examination of acid-fast bacilli from peripheral blood and sputum. We began to administer CAM, LVFX, AMK, IPM/CS to this patient two weeks after admission. However, he died of respiratory failure and septic shock. There are few case reports of pulmonary lesion with septicemia due to Mycobacterium massiliense.
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